Matched pairs of USA Made NOS/NIB JAN Sylvania and JAN Philips/Sylvania 6L6WGB power tubes. These are the small bottle 6L6WGB’s. Orig military packaging.

Pairs are matched within 5% of current draw at working voltage and measured together as pairs. These were manufactured between late 70’s and 1987. Fully tested for shorts, grid emission, transconductance and current draw on a custom built burn-in rig and a properly calibrated/rebuilt Hickok 539C tester. Tubes are checked in an amp for proper function and no noise.